13031310121320 has 128 divisors (see below), whose sum is σ = 39200204534400. Its totient is φ = 3465572097024.

The previous prime is 13031310121301. The next prime is 13031310121387. The reversal of 13031310121320 is 2312101313031.

It is a happy number.

13031310121320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400171359 + ... + 400203921.

It is an arithmetic number, because the mean of its divisors is an integer number (306251597925).

Almost surely, 2^{13031310121320} is an apocalyptic number.

13031310121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031310121320 is an abundant number, since it is smaller than the sum of its proper divisors (26168894413080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13031310121320 is a wasteful number, since it uses less digits than its factorization.

13031310121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41539 (or 41535 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13031310121320 its reverse (2312101313031), we get a palindrome (15343411434351).

The spelling of 13031310121320 in words is "thirteen trillion, thirty-one billion, three hundred ten million, one hundred twenty-one thousand, three hundred twenty".